An appeals court in New York has upheld a summary judgement that favoured Dr Luke in his ongoing defamation legal battle with Kesha. In particular, judges confirmed that Luke – despite being a very successful and well known record producer and label owner – is not a “public figure”, which has a significant impact on cases of this kind.This defamation action is all that remains of a long-running, multi-layered and quite complicated legal battle between Luke and Kesha.